Strand package arbor



Nov. 4, 1952 K. BAUER STRAND PACKAGE ARBOR Filed March 25,- 1950JNVENTOR. [ENE-5T h. BA UE/i ATTORNEY.

Patented Nov. 4, 1952 STRAND PACKAGE ARBOR Ernest K. Bauer, Meadville,Pa., assignor to American Viscose Corporation, Wilmington, Dcl., a

corporation of Delaware Application March 23, 1950, Serial No. 151,47510 Claims. (01. 24246.2)

This invention relates to a tube holder or arbor for supporting thepackages of strand wound about an annular core, particularly to arotatable support upon which the package may be secured and centeredwith respect to its axis of rotation.

It is an object of the invention to provide a holder having a rigidspindle structure such that the rotatable portion may revolve freelywithout vibration. It is another object to provide a holder on which thepackage may be centered and secured to a position wherein it isrestrained from moving or tilting relative to the holder. It is stillanother object to provide a package arbor which has a spindle or shaftof unitary construction. Other objects, features and advantages of theinvention will be apparent from the description of the inventionrelating thereto in which:

Fig. 1 is a. longitudinal section taken along the axis of apparatusaccording to one embodiment of the invention;

Fig. 2 is an end view of the apparatus illustrated in Fig. 1;

Fig. 3 is a section view taken along line III-III of Fig. 1;

Fig. 4 illustrates a spring member of Fig. 1 viewed from anotherdirection;

Fig. 5 is a section view along the axis of a modifled apparatus;

Fig. 6 is a section view taken along line VI--VI of Fig. 5;

Fig. 7 is an end view of a manual control element of the apparatus ofFig. 5

Fig. 8 is a longitudinal section of modified apparatus taken along itsaxis; and

Fig. 9 is an end view of the apparatus illustrated by Fig. 8.

In brief, an arbor or rotatable package support according to theinvention comprises a unitary spindle, an annular rotary housingsupported on the spindle by bearings, spring mounted gripping membersfor engaging the inner surface of an annular strand package to the outerwall of the housing, and a cam controller for engaging surfaces of thesprings to urge the gripping members into engagement or' out ofengagement with the package, and. a portion of the controller extendingaxially from one end of the housing to make it accessible for manualmanipulation.

Fig. 1 illustrates in section an assembly which may be readily mountedon a twister or other winding device by insertion of the left end of aspindle [2 into a cylindrical socket (not shown) slotted to accommodatea pin l4. A cylindrical sleeve or housing I5 is supported rotatably withrespect to the shaft by anti-friction bearings ll and N3 the inner racesof which are secured to the spindle by set screws l9 and 20. Annularspacer or hub members 24 and 25 center and support the housing [5 on theouter races of the bearings. Three leaf-type spring members 28 aresecured by rivets 29 to extend lengthwise of the sleeve to sections ofthe inner surface of the sleeve I5 apart. Fig. 4 illustrates a springmember 28 as seen when viewing the member in a radially outwarddirection from the axis of the assembly. The springs 28 have apertures39 in which to secure blocks 32 comprising material such as a softvulcanized rubber composition. The blocks 32 are each supported along aradius extending from the axis of the shaft l2 through holes 33 providedthrough arcuately spaced sections of the housing 15 to engage the innersurface of a rigid core 3 1 of a strand package. The end portions whichsupport the blocks 32 deflect radially outwardly to urge the blocksagainst the core surface. Thus, a package 35 is supported by theassembly on the blocks 32 and on the surface of a flared flange 38.

To release the grip of the blocks 32 on the package core 34, a cammember 36 best illustrated in Fig. 3, may be moved in an axial directionwithin the housing to produce deflection of the springs. Sections 31 ofthe springs are biased in a radial outward direction toward the left asviewed in Fig. l to produce cam surfaces on which the member 36 maywork. Movement of the cam member 36 to the right causes the peripheriesof apertures 46 of the member to slidably engage the outer surface ofthe springs whereby the blocks are carried radially inwardly and awayfrom the core surface. The cam member is connected by three parallelrods 39 to a manual control member 40 spaced axially from the cam memberand the outer surface of the bearing 25. The control member is providedwith a sleeve element or handle 42 having an outer knurled surface withwhich to grip the member 40. Thus by manual manipulation of the member42, the position of the cam member 36 may be varied in a directionlengthwise of the springs 28 to obtain radial movement of the blocks 32.The sections 31 of the springs are provided with surfaces 44 which aresubstantially parallel to the cylindrical wall of the sleeve l5 so thatthe cam member 36, when pulled into the position for producingdisengagement of the blocks, will remain in that position until forciblymoved toward the right as viewed in Fig. 1.

Fig. 5 illustrates a modification of the device shown in Figs. 1 to 4wherein a sleeve or shroud ia is suported on the shaft l2 in the mannershown for the sleeve l5 of Fig. 1 except that the left bearing Fla isspaced further inward from the left end of the sleeve I5a. A spacermember which supports the sleeve on the outer race of the bearing Fla isapertured to permit extension therethrough of two leaf-type springs-5U.As viewed in Fig. 5, the left ends 51 of the springs engage the innersurface of the sleeve 15a; the springs are set or formed, and theapertures 48 of the spacer member are positionedatsufiicient radius, soas to deflect the portions of the springs extending to the right fromthe apertures toward the inner surface of the sleeve. 1 Thus the springsare strongly inclined to urge the resilient cushions 53 fastened theretoin a direction radially outwardly to a position wherein they extendthrough apertures 54 through the sleeve l5a against the inner surface ofa strand package (not shownysurroundin .the sleeve [5a. The right endportions of the springs are; contoured to provide cam surfaces 56bywhich the, springs mayb en a y a am m m er. .55 andde: flectedtowardtheshaft l2 to carryjhe cushions 53 out of engagementv with theinner surf-aceof a tran ack h a m m 5 .1mm: r ly er res, as sho n fietawgm: l": e ha l2. an tqp vide cams r aqe 51. The member 55 maybe movedin a direction parallel to the shaft toward and away frpm:.-th e innerbearing race 58. The cam. member 55 is connected to a handle, alsoillustrated in Fig. 7, m ri ad eele en 5. n atu ular- $1. m n by w c r d!di betwe n and secured to thecamvmember and the element 66. The hubmember 62 is apertured-to permit extension therethrough and movementrelative thereto of the rods 64. p H Fig. 8 illustrates astrandpackageholder in which engagementand disengagement of a pin ralityor cushions 10 with the inner surface are strand package surrounding thesleeve [51) is .effected bya rotatable cam member 12 instead (if byaxially slidab'le cam members such as employed in the embodimentsdescribed earlier here: in. The sleeve l5. is sup orted ontwoantifriction bearings 15 andllfij Ari annular hfnb 18 which supports andcenters the left end poi; tion of thefsleeve 15b on the uter race or thebearing 15 is provided also with aflang'e 1.9 to re: ceive the edge of apackage core to positively position the package in an axial directionwith respect to the arbor. T he cushions 10 are each supported byleaf-type springs H which are secured to the sleeve by the rivets 13.The springs extend almost to the ri ht end of the sleeve [52; as viewedin Fig. 8. The outer diameter of the cam member 12 is slightly less thanthat of the inner surface of the sleeve member so as to be freelyrotatable within the sleeve member; an aperture 8| through the memberprevents contact thereof with the shaft l2. Handles 83 extending fromthe cam member enable manual rotation thereof with respect to the sleeveI51) and the end portions of the springs. As shown in Fig. 9, the cam isin the position permitting maximum outward deflection of the springs Hand engagement of the cushions 75 with the inner surface of a strandpackage when supported by the arbor.

The cam member 12 is rotated from this position in a counterclockwisedirection to bring the surfaces 85 into engagement with the outersurfaces of the springs "II. when desiredto move the cushions l0radially inward torelease a package.

While preferred embodiments of the invention have been shown anddescribed, it is to be under- 4 stood that changes and variations may bemade without departing from the spirit and scope of the invention asdefined in the appended claims.

I claim:

1. A holder for annular strand packages comprising a shaft, a sleevemember supported by the shaft in rotatable. and, .coaxial relationshiptherewith; the member having an opening disposed intermediately of itsends, a movable element of smaller cross section than the opening forengaging a package supported around the member, spring means forsupporting the movablezelement in. the .opening, said element beingattached to. thecspring means and the spring means being secured to themember at a point remote. fromthepoint of attachment to the element,th'spring means having a cam portion which is remote from the portion ofthe spring means secured to the member, a cam for engaging {the cam.portion. said cam being. supported within the/member in. 'sli dable{adjustable relationship with a guide surfaceof the mem en e meansforadjustingthe c'ani extending in axial direction. independen ly; andradially ex;- teriorly of, the snaf rrtmth tam to. amanually accessibleregion at one ndef tn member,

, A Home: o; am

tatable. relationship therewith an having, element attachedtheretofolfthe purpose of up; porting theelement in alignment for movement throughthQDDe i i th sp in .b n ,,arraiiged and tensioned to urge the elementin a i adi-allt outward r, direction thro ugh the opening; s d springhaving a dam portion, a cam for engag i he am o t n, sa d. cam. upp reiwith the member in slidabl adjustable relationship witha guidesurf-ace of themember and means for adjusting the cam extendin ina'naxial ia shaft from the cam to a manually a'cessible region at one endof the member. s 3. A holder for annular strand package's eo'rnprising ashaft, a sleeve member supported b'y the shaft in rotatable and coaxialrelationship tH'rew it h, the member having plurality of ee which extendin aradial directibn through p tio ns of the member that are angularlyspaced from each other with respect to the ax s rtp m m n v element femel grins e t n t n t e n g .fQ T. eng ing a. package supportedaroundthemember, spring means r supporting the movable e l ements in the, o"peings, said elements being attached to spring. means, and the spring.meanswbein g secured. to the member, ortions. the spring means.remotefrorn the .iloints or att'aeh mentto theelenients, the springlnie'ns having cam. surfaces which. are temetarrtm, ar' pf tions'of thespring means'securedto the rnembl a m f r, n a nst ca sur a e xsai cm bn up orted W h t e. m mber. in id. ble adjustable relationship with aguide surfaee of the,member, and meansfon adjusting the cam extending inan axial v direction independently, and, radially exteriorly of,theshaft from thecam to .a manually accessible region at one end of pthe member...

prising a shaft, a sleeve member supported by the shaft in rotatable andcoaxial relationship therewith, said member having a plurality ofopenings which extend in a radial direction through portions of themember that are angularly spaced from each other with respect to theaxis of the member, movable elements of smaller cross section than theopenings, a plurality of spring supported within the member innon-rotatable relationship therewith, each spring having one of saidelements attached thereto for the purpose of supporting the element inalignment for movement through an opening, the springs being arrangedand tensioned to urge the elements in a radially outward directionthrough respective openings, cam surfaces on the springs which faceradially outwardly, a cam for engaging the cam surfaces, said cam beingsupported within the member in slidable adjustable relationship with aguide surface of the member, and means for adjusting the cam extendingin an axial direction independently, and radially exteriorly of, theshaft and from the cam to a manually accessible region at one end of themember.

5. A holder for annular strand packages comprising a shaft, a sleevemember, a pair of bearings for supporting the member concentrically androtatably with respect to the shaft, the bearings being spaced withinthe member adjacent the ends thereof, at least one opening through aportion of the member disposed between the bearings, a leaf springextending longitudinally within the member, being fixedly secured withinthe member, and having a cam follower section, an element for engagingthe interior surface of packages mounted on the spring for movementthrough said opening, a cam for engaging the cam follower section, andmeans connected with the cam and extending through one of the bearingsinto a manually accessible region adjacent one of the ends of the sleevemember for moving the cam in an axial direction.

6. A holder for annular strand packages comprising a shaft, a sleevemember supported by the shaft in rotatable and coaxial relationshiptherewith, the member having a plurality of openings which extend in aradial direction through portions of the member that are angularlyspaced from each other with respect to the axis of the member, movableresilient elements of smaller cross section than the openings, springmeans supported within and secured to the sleeve for supporting saidelementsin alignment for movement through the openings, the spring meansbein mounted and tensioned to urge the elements in a radially outwarddirection through the openings, radially outwardly-facing cam surfaceson the spring means, a cam for engaging the cam surfaces enclosed withinand supported by the sleeve in adjustable rotatable relationship with aguide surface of the sleeve, and manual gripping means for adjusting thecam extending axially from the cam to a manually accessible region atone end of the sleeve.

7. A holder for annular strand packages comprising a shaft, a sleevemember supported by the shaft in rotatable and coaxial relationshiptherewith, the member having a plurality of openings which extend in aradial direction through portions of the member that are angularlyspaced from each other with respect to the axis of the member, movableelements of smaller cross section than the openings, spring meanssecured to and supported within the sleeve for supporting said elementsin alignment for movement through the openings, said spring means beingmounted to urge the elements in a radially outward direction through theopenings, cam surfaces on the spring means which face radially outwardlyand extend in a direction which is longitudinal of the sleeve, a cam forengaging the cam surfaces, said cam being slidably adjustable in alongitudinal direction with respect to the sleeve alon a guide surfacethereof, and means for adjusting a cam extending from the cam to amanually accessible region at one end of the sleeve.

8. A holder for annular strand packages comprising a shaft, a sleevemember, spaced bearings for supporting the sleeve member in coaxial androtatable relationship with the shaft, the member having a plurality ofopenings which extend in a radial direction through portions, of themember that are angularly spaced from each other with respect to theaxis of the member, a, plurality of elongate leaf springs each securedby one end thereof to arcuately spaced sections of the inner surface ofthe sleeve which are spaced from the openings in a direction parallel tothe shaft, said springs having apertures in radial concurrence with theopenings in the sleeve, a resilient cushion of smaller cross sectionthan the openings extendin through each opening and secured to theadjacent spring through the aperture thereof, said springs beingtensioned to urge the cushions through the openings, sections of similarcontour in each of the spring members intermediate the aperture and thesecured end-portion which are contoured to provide a cam surfaceextending longitudinally of the sleeve, an annular cam member fittingslidably within the inner surface of the sleeve and having a cam surfacefor engaging the cam surface of each spring, a manual control membersupported for movement in a direction parallel to the shaft in amanually acessible region adjacent the end of the sleeve, andsymmetrically disposed axially extending push rods for connecting thecam member and the control member.

9. A holder for annular strand packages comprising a shaft, a sleevemember, the member having a plurality of openings which extend in aradial direction through portions of the member that are angularlyspaced from each other with respect to the axis of the member, a pair ofspaced bearings for supporting the sleeve member in rotatable andcoaxial relationship with the shaft, an annular spacer member betweenthe outer race of one of the bearings and the sleeve, the spacer memberhaving apertures extending therethrough in a direction parallel to theshaft with the angular spacing of the apertures being the same as thatof the openings, a plurality of elongate leaf springs extendinglongitudinally within the sleeve with their end-portions extendingthrough the apertures beyond the spacer member to engage the innersurface of the sleeve at a point intermediate the bearing and the end ofthe sleeve, the majorportion of each spring extending from the spacermember toward the other bearing. said springs terminating in similar camsurfaces aligned in the longitudinal direction of the springs, anaperture through each of the springs in radial alignment with a sleeveopening and located between the annular spacer member and the camsurface, resilient cushions secured in said apertures and extendingthrough the openings, an annular cam member having uniform aperturesspaced angularly about the axis to receive the cam sections of thesprings, said cam member having a slightly smaller diameiser; thanthe-inner surfaceofi-thesleeyewithe. in, which. the. member is supported in slidingcon; tact, another annular. member; contained; s lil-ga.}p ly within the. end-portion of;the-s leev e adjapent thesecondenamed bearingand a coag ial tubula; hap

dle secured thereto, and push rods conne eting the...

cam member and the last-named annular; merry her.

10. A. holder. for annular strandpaclragescom prising a shaft, a sleevemember, spaced hear'n fit, one bearing adjacentueaqh end; of; thesle e for;

up or ng he sleeve in rotatab e-a dm9ex a1 2 lationship with the shaft,the membenhaying; a plurality. of openings, which extend: in a radial;direotion through portions 01 the. member that; are angularly, spaced;from, each othe1 with; re spect. to the axis; of; the member, a; likenunben of elongate leaf springs being similarly, angu;

larly. spaced and having-end-po f ions. secured-rte sections of the.inner surface ofthev sleeve and; extending longitudinally,therewithininto radial:

alignment with the. openings, said springs ex-.

tending also through apertures-provided;in the.

outer section of thebearingmostremotefrom-the secured; ends. of;thespringg cushions secured. to 2 5 3.6. 33 respective portions of each;qf: the. springs; in

adial ali ment th h nnenin steaqhn a d h ines b ina e pn diq r'secushion upported thereon through an; onening, an; annular cam memberhaving a plurality of similar cam surfaces spaced in agreement with the.angular spacing of; the. springs.v and extending in a plane normal tothe axis, saidcam: member being ad ERNEST K. BAUER.

RE RENCE CITED.

he ol w n refer es.- are of record i h file oi. this patent:

UNITED STATES PATENTS N mb r m ate.

668, 9 mbla M 2 1,731,547 Hoegger Nov.11-, 1930 I v Thomas Dec. 26,19443432.4 i ys n. un 194B

